People living in low lying areas in India's southern city of Chennai have been evacuated and more than 150 relief centres are on standby ahead of a "very severe cyclonic storm".
The Indian Meteorological Department (IMD) said 'Nivar' was likely to cross between "midnight of 25th and early hours of 26th November" and was likely to bring very heavy rainfall.
Areas in and around Chennai witnessed intense spells of rain, accompanied by strong winds on Wednesday.
The cyclone was likely to damage houses and roads, uproot power lines and trees and destroy crops along India's south-east coast, the IMD said.
Edappadi Palaniswami, Tamil Nadu state's chief minister, has declared Wednesday and Thursday as public holidays in some areas, ordered the halting of bus services, advised fishermen not venture to sea and asked people to stay indoors.
Local government officials in Chennai released water from a major reservoir, cleared fallen trees and readied relief centres as they evacuated people from low lying areas.
A Russian attack on Ukraine's southern Odesa region killed two people and injured three overnight, Ukraine's emergency service and a government official said on Monday.
Former Philippine President Rodrigo Duterte was "pivotal" in the murder of thousands of people during his rule, prosecutors at the International Criminal Court (ICC) said on Monday, as they pushed for his trial to go ahead.
Children across parts of the US Northeast will stay home on Monday as a powerful winter storm forced school closures and pushed offices and transit systems onto emergency schedules, with officials across the region warning of dangerous travel conditions.
A passenger bus plunged 200 metres (650 feet) from a mountainous road in west Nepal before dawn on Monday, killing 19 people including three foreign nationals.
Human rights are under assault worldwide, the United Nations chief warned on Monday, citing widespread abuses of international law and devastating civilian suffering in conflicts in Sudan, Gaza and Ukraine.